server.js ===========================
"use strict.js"

const webpack = require('webpack');
const WebpackDevServer = require('webpack-dev-server');
const config = require('./webpack.config');

const compiler = webpack(config);
const devServerOptions = {
  port: 3100,
  open: true,
  compress: true,
  allowedHosts: [
    'dahut.ive',
    'localhost'
  ],
  headers: {
    "Access-Control-Allow-Origin": "*",
    "Access-Control-Allow-Methods": "GET, POST, PUT, DELETE, PATCH, OPTIONS",
    "Access-Control-Allow-Headers": "X-Requested-With, content-type, Authorization"
  }
};
const server = new WebpackDevServer(devServerOptions, compiler);

server.startCallback(() => {
  console.log("Starting server on http://localhost:3100");
});

package.json =========================
{
  "name": "npm",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "dependencies": {
    "mithril": "^2.0.0-rc.6",
    "uikit": "^3.6.22"
  },
  "devDependencies": {
    "css-loader": "^6.5.1",
    "exports-loader": "^0.7.0",
    "html-webpack-plugin": "^5.5.0",
    "less": "^3.13.1",
    "less-loader": "^4.1.0",
    "style-loader": "^0.23.1",
    "webpack": "^5.66.0",
    "webpack-cli": "^4.9.1",
    "webpack-dev-server": "^4.7.3"
  },
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1",
    "start": "node server.js",
    "build": "webpack src/index.js -p"
  },
  "keywords": [],
  "author": "",
  "license": "ISC"
}


webpack.config.js ==========================

const path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');

module.exports = {
  mode: 'development',
  output: {
    path: path.join(__dirname, 'dist'),
    filename: 'app.[contenthash].js',
    publicPath: './'
  },
  module: {
    rules: [
      {
        test: /\.css$/,
        use: [{
          loader: 'style-loader'
        }, {
          loader: 'style-loader'
        }]
      },
      {
        test: /\.less$/,
        use: [{
          loader: 'style-loader'
        }, {
          loader: 'css-loader'
        }, {
          loader: 'less-loader'
        }]
      }
    ]
  },
  plugins: [
    new HtmlWebpackPlugin({
      template: path.join(__dirname + '/index.html')
    })
  ]
};